Big the Cat is a large yet gentle mobian cat with yellowish eyes. He first appeard in Sonic Adventure on the Sega Dreamcast, and later appears as playable character in Sonic Shuffle and Sonic Heroes whilst making various cameo appearances in other games such as Sonic Adventure 2 for the Dreamcast.
Big is a fisherman, and brings his fishing rod with him wherever he goes, (which can be used as an umbrella). He lives in a hut at Mystic Ruins with his best friend, Froggy. Big is simple minded and appears to be somewhat slow witted, but is also very humble, friendly and protective of his friends.